If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.

The genus Cymatiella contains the smallest ranellids, few exceeding 20 mm H, with a relatively tall, straightsided spire and a short, rounded last whorl and short, open siphonal canal, simple sculpture of spiral and axial ridges, and a correspondingly small, smooth, turbiniform protoconch.